@article{BSMF_1974__102__181_0,
     author = {Fliess, Michel},
     title = {Sur divers produits de s\'eries formelles},
     journal = {Bulletin de la Soci\'et\'e Math\'ematique de France},
     pages = {181--191},
     publisher = {Soci\'et\'e math\'ematique de France},
     volume = {102},
     year = {1974},
     doi = {10.24033/bsmf.1777},
     mrnumber = {50 #7125},
     zbl = {0313.13021},
     language = {fr},
     url = {http://www.numdam.org/articles/10.24033/bsmf.1777/}
}